Need Help Helping cocaine addicted boyfriend: child involved

[Shooting Starz]

My boyfriend is an addict he has been an addict to crack for 10 years it was real bad for a long time but over the last couple years its gotten alot better it went from about $1000 a week habbit to a $600 - $800 a month habbit. Which he keeps explaining to me he is alot better than he was before he stays home instead of disappearing and staying gone till he has smoked up all the money. well last week he went back to his old ways so tp speak he left monday morning to go pick up his check and didnt come home i found him at a friend of his house the next after noon his check was $1600 and he only had $130 left he says he only smoked about $700 and then was robbed at gun point for the rest and the $130 was money that was loaned to him by this friend. nothing will convince me that the getting robbed story wasnt a lie due to the fact he looked like he was at the point of ODing and when i finally got him home he slept for 3 days and when he woke he swore he was done with all drugs and wanted my help keeping away from them and his old friends his little adventure caused us to loose our house so i had to go back to my moms and he was homeless i talked a couple of my friends into letting him stay a couple days at thier house i was worried because they do alot of ICE but he said he wasnt going to do any. that turned into a lie and he did smoke it with them he says he didnt but he cant hide it from me because he gets major paranoid plus they told me he did and he wasnt welcome back at thier house because of the way he trips. anyway a couple days laster he comes to me and breaks down crying we talked for 5 hours he truely wants to quit but he has done nothing but get high for most of his life he doesnt know how to life without it when he gets bored thats the only thing he knows same when he gets mad, depressed, or wants to celebrate. he asked for my help because rehabs have never worked for him niether have all the NA, CA, and AA meetings he has tried in the past. he says i make it harder on him sometimes when i bitch to much about what he doesnt do right and i dont tell him enough what he does do right. but its hard to focus on what he does right when its way out numbered by what he does wrong. we are expecting a baby in less than 2 months now we have no home and no car because he smoked up our rent and car payment. so its hard to be happy or not bitch worry or complain. how can i help him and still not have to act like nothing is wrong. how can i help him when he craves the stuff. i have smoked every kind of drug there is but i cant see how a person can need or want the stuff that bad. i can smoke with the best and out smoke a few people but when i put it down im done with it for months and months he seems to need it all the time he works away from home for 2 weeks and he stays sober when he is gone but the 2 weeks he is home he cant seem to stay sober but for maybe 4 days of it. how can i help him understand that there is more to life than dope and impressing his buddies?